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<li class="navelem"><a class="el" href="../../d2/d75/namespacecv.html">cv</a></li><li class="navelem"><a class="el" href="../../d2/daf/namespacecv_1_1detail.html">detail</a></li><li class="navelem"><a class="el" href="../../de/d44/namespacecv_1_1detail_1_1tracking.html">tracking</a></li><li class="navelem"><a class="el" href="../../dc/d5e/namespacecv_1_1detail_1_1tracking_1_1tbm.html">tbm</a></li><li class="navelem"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html">Track</a></li>  </ul>
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<a href="#pub-methods">Public Member Functions</a> &#124;
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<a href="../../d5/df1/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track-members.html">List of all members</a>  </div>
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<div class="title">cv::detail::tracking::tbm::Track Class Reference</div>  </div>
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<p>The <a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html" title="The Track class describes tracks. ">Track</a> class describes tracks.  
 <a href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#details">More...</a></p>

<p><code>#include &lt;opencv2/tracking/tracking_by_matching.hpp&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:ad0714808cb6bc2f3456323bd598f42f4"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#ad0714808cb6bc2f3456323bd598f42f4">Track</a> (const <a class="el" href="../../dc/d5e/namespacecv_1_1detail_1_1tracking_1_1tbm.html#ab341a7342c7d95812f63c419e53a62b1">TrackedObjects</a> &amp;objs, const <a class="el" href="../../d3/d63/classcv_1_1Mat.html">cv::Mat</a> &amp;<a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a33f886be4d6e82e4043b0fa9a5f3809e">last_image</a>, const <a class="el" href="../../d3/d63/classcv_1_1Mat.html">cv::Mat</a> &amp;<a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a4f00cb38dc973af86a15530f06f9f064">descriptor_fast</a>, const <a class="el" href="../../d3/d63/classcv_1_1Mat.html">cv::Mat</a> &amp;<a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#aec9cad88539d0dccfc2d45b03fd99a37">descriptor_strong</a>)</td></tr>
<tr class="memdesc:ad0714808cb6bc2f3456323bd598f42f4"><td class="mdescLeft">&#160;</td><td class="mdescRight"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html" title="The Track class describes tracks. ">Track</a> constructor.  <a href="#ad0714808cb6bc2f3456323bd598f42f4">More...</a><br /></td></tr>
<tr class="separator:ad0714808cb6bc2f3456323bd598f42f4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ada33f5fb920c81b91c8038f65080cb1c"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="../../da/d5a/structcv_1_1detail_1_1tracking_1_1tbm_1_1TrackedObject.html">TrackedObject</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#ada33f5fb920c81b91c8038f65080cb1c">back</a> () const</td></tr>
<tr class="memdesc:ada33f5fb920c81b91c8038f65080cb1c"><td class="mdescLeft">&#160;</td><td class="mdescRight">back returns const reference to last object in track.  <a href="#ada33f5fb920c81b91c8038f65080cb1c">More...</a><br /></td></tr>
<tr class="separator:ada33f5fb920c81b91c8038f65080cb1c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a04abfc42e8012670242d09b9d4c59584"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../da/d5a/structcv_1_1detail_1_1tracking_1_1tbm_1_1TrackedObject.html">TrackedObject</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a04abfc42e8012670242d09b9d4c59584">back</a> ()</td></tr>
<tr class="memdesc:a04abfc42e8012670242d09b9d4c59584"><td class="mdescLeft">&#160;</td><td class="mdescRight">back returns non-const reference to last object in track.  <a href="#a04abfc42e8012670242d09b9d4c59584">More...</a><br /></td></tr>
<tr class="separator:a04abfc42e8012670242d09b9d4c59584"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7f1d01e2c305b8accef5f2fda3b8a3f8"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a7f1d01e2c305b8accef5f2fda3b8a3f8">empty</a> () const</td></tr>
<tr class="memdesc:a7f1d01e2c305b8accef5f2fda3b8a3f8"><td class="mdescLeft">&#160;</td><td class="mdescRight">empty returns if track does not contain objects.  <a href="#a7f1d01e2c305b8accef5f2fda3b8a3f8">More...</a><br /></td></tr>
<tr class="separator:a7f1d01e2c305b8accef5f2fda3b8a3f8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1b08b3309c19704c4efcd3e76b5d3fe8"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="../../da/d5a/structcv_1_1detail_1_1tracking_1_1tbm_1_1TrackedObject.html">TrackedObject</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a1b08b3309c19704c4efcd3e76b5d3fe8">operator[]</a> (size_t i) const</td></tr>
<tr class="memdesc:a1b08b3309c19704c4efcd3e76b5d3fe8"><td class="mdescLeft">&#160;</td><td class="mdescRight">operator [] return const reference to detected object with specified index.  <a href="#a1b08b3309c19704c4efcd3e76b5d3fe8">More...</a><br /></td></tr>
<tr class="separator:a1b08b3309c19704c4efcd3e76b5d3fe8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6e7410e90f67aece744325ccd65fcb37"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../da/d5a/structcv_1_1detail_1_1tracking_1_1tbm_1_1TrackedObject.html">TrackedObject</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a6e7410e90f67aece744325ccd65fcb37">operator[]</a> (size_t i)</td></tr>
<tr class="memdesc:a6e7410e90f67aece744325ccd65fcb37"><td class="mdescLeft">&#160;</td><td class="mdescRight">operator [] return non-const reference to detected object with specified index.  <a href="#a6e7410e90f67aece744325ccd65fcb37">More...</a><br /></td></tr>
<tr class="separator:a6e7410e90f67aece744325ccd65fcb37"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acee0dd0e63e62f73482101f7e62c0f65"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#acee0dd0e63e62f73482101f7e62c0f65">size</a> () const</td></tr>
<tr class="memdesc:acee0dd0e63e62f73482101f7e62c0f65"><td class="mdescLeft">&#160;</td><td class="mdescRight">size returns number of detected objects in a track.  <a href="#acee0dd0e63e62f73482101f7e62c0f65">More...</a><br /></td></tr>
<tr class="separator:acee0dd0e63e62f73482101f7e62c0f65"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a4f00cb38dc973af86a15530f06f9f064"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d3/d63/classcv_1_1Mat.html">cv::Mat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a4f00cb38dc973af86a15530f06f9f064">descriptor_fast</a></td></tr>
<tr class="memdesc:a4f00cb38dc973af86a15530f06f9f064"><td class="mdescLeft">&#160;</td><td class="mdescRight">Fast descriptor.  <a href="#a4f00cb38dc973af86a15530f06f9f064">More...</a><br /></td></tr>
<tr class="separator:a4f00cb38dc973af86a15530f06f9f064"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aec9cad88539d0dccfc2d45b03fd99a37"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d3/d63/classcv_1_1Mat.html">cv::Mat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#aec9cad88539d0dccfc2d45b03fd99a37">descriptor_strong</a></td></tr>
<tr class="memdesc:aec9cad88539d0dccfc2d45b03fd99a37"><td class="mdescLeft">&#160;</td><td class="mdescRight">Strong descriptor (reid embedding).  <a href="#aec9cad88539d0dccfc2d45b03fd99a37">More...</a><br /></td></tr>
<tr class="separator:aec9cad88539d0dccfc2d45b03fd99a37"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aad57e600a2150b8773c0a427f0a925a0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../da/d5a/structcv_1_1detail_1_1tracking_1_1tbm_1_1TrackedObject.html">TrackedObject</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#aad57e600a2150b8773c0a427f0a925a0">first_object</a></td></tr>
<tr class="memdesc:aad57e600a2150b8773c0a427f0a925a0"><td class="mdescLeft">&#160;</td><td class="mdescRight">First object in track.  <a href="#aad57e600a2150b8773c0a427f0a925a0">More...</a><br /></td></tr>
<tr class="separator:aad57e600a2150b8773c0a427f0a925a0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a33f886be4d6e82e4043b0fa9a5f3809e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d3/d63/classcv_1_1Mat.html">cv::Mat</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a33f886be4d6e82e4043b0fa9a5f3809e">last_image</a></td></tr>
<tr class="memdesc:a33f886be4d6e82e4043b0fa9a5f3809e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Image of last detected object in track.  <a href="#a33f886be4d6e82e4043b0fa9a5f3809e">More...</a><br /></td></tr>
<tr class="separator:a33f886be4d6e82e4043b0fa9a5f3809e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8b5d0299c41d7f3e0abf9c3a532eb376"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a8b5d0299c41d7f3e0abf9c3a532eb376">length</a></td></tr>
<tr class="separator:a8b5d0299c41d7f3e0abf9c3a532eb376"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a57501cdf4b1b36b73300853dfc639ae8"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a57501cdf4b1b36b73300853dfc639ae8">lost</a></td></tr>
<tr class="memdesc:a57501cdf4b1b36b73300853dfc639ae8"><td class="mdescLeft">&#160;</td><td class="mdescRight">How many frames ago track has been lost.  <a href="#a57501cdf4b1b36b73300853dfc639ae8">More...</a><br /></td></tr>
<tr class="separator:a57501cdf4b1b36b73300853dfc639ae8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7bb909be6720d6f54d984fe48e8cd3fa"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../dc/d5e/namespacecv_1_1detail_1_1tracking_1_1tbm.html#ab341a7342c7d95812f63c419e53a62b1">TrackedObjects</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a7bb909be6720d6f54d984fe48e8cd3fa">objects</a></td></tr>
<tr class="memdesc:a7bb909be6720d6f54d984fe48e8cd3fa"><td class="mdescLeft">&#160;</td><td class="mdescRight">Detected objects;.  <a href="#a7bb909be6720d6f54d984fe48e8cd3fa">More...</a><br /></td></tr>
<tr class="separator:a7bb909be6720d6f54d984fe48e8cd3fa"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9b2e546787d55c3913efae4c07cb5ee6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../dc/d84/group__core__basic.html#ga11d95de507098e90bad732b9345402e8">cv::Rect</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html#a9b2e546787d55c3913efae4c07cb5ee6">predicted_rect</a></td></tr>
<tr class="separator:a9b2e546787d55c3913efae4c07cb5ee6"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>The <a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html" title="The Track class describes tracks. ">Track</a> class describes tracks. </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="ad0714808cb6bc2f3456323bd598f42f4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad0714808cb6bc2f3456323bd598f42f4">&#9670;&nbsp;</a></span>Track()</h2>

<div class="memitem">
<div class="memproto">
<table class="mlabels">
  <tr>
  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">cv::detail::tracking::tbm::Track::Track </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="../../dc/d5e/namespacecv_1_1detail_1_1tracking_1_1tbm.html#ab341a7342c7d95812f63c419e53a62b1">TrackedObjects</a> &amp;&#160;</td>
          <td class="paramname"><em>objs</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="../../d3/d63/classcv_1_1Mat.html">cv::Mat</a> &amp;&#160;</td>
          <td class="paramname"><em>last_image</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="../../d3/d63/classcv_1_1Mat.html">cv::Mat</a> &amp;&#160;</td>
          <td class="paramname"><em>descriptor_fast</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="../../d3/d63/classcv_1_1Mat.html">cv::Mat</a> &amp;&#160;</td>
          <td class="paramname"><em>descriptor_strong</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span>  </td>
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</table>
</div><div class="memdoc">

<p><a class="el" href="../../d7/d20/classcv_1_1detail_1_1tracking_1_1tbm_1_1Track.html" title="The Track class describes tracks. ">Track</a> constructor. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">objs</td><td>Detected objects sequence. </td></tr>
    <tr><td class="paramname">last_image</td><td>Image of last image in the detected object sequence. </td></tr>
    <tr><td class="paramname">descriptor_fast</td><td>Fast descriptor. </td></tr>
    <tr><td class="paramname">descriptor_strong</td><td>Strong descriptor (reid embedding). </td></tr>
  </table>
  </dd>
</dl>

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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ada33f5fb920c81b91c8038f65080cb1c">&#9670;&nbsp;</a></span>back() <span class="overload">[1/2]</span></h2>

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          <td class="memname">const <a class="el" href="../../da/d5a/structcv_1_1detail_1_1tracking_1_1tbm_1_1TrackedObject.html">TrackedObject</a>&amp; cv::detail::tracking::tbm::Track::back </td>
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<p>back returns const reference to last object in track. </p>
<dl class="section return"><dt>Returns</dt><dd>const reference to last object in track. </dd></dl>

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          <td class="memname"><a class="el" href="../../da/d5a/structcv_1_1detail_1_1tracking_1_1tbm_1_1TrackedObject.html">TrackedObject</a>&amp; cv::detail::tracking::tbm::Track::back </td>
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<p>back returns non-const reference to last object in track. </p>
<dl class="section return"><dt>Returns</dt><dd>non-const reference to last object in track. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a7f1d01e2c305b8accef5f2fda3b8a3f8">&#9670;&nbsp;</a></span>empty()</h2>

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<p>empty returns if track does not contain objects. </p>
<dl class="section return"><dt>Returns</dt><dd>true if track does not contain objects. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a1b08b3309c19704c4efcd3e76b5d3fe8">&#9670;&nbsp;</a></span>operator[]() <span class="overload">[1/2]</span></h2>

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          <td class="memname">const <a class="el" href="../../da/d5a/structcv_1_1detail_1_1tracking_1_1tbm_1_1TrackedObject.html">TrackedObject</a>&amp; cv::detail::tracking::tbm::Track::operator[] </td>
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<p>operator [] return const reference to detected object with specified index. </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">i</td><td>Index of object. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>const reference to detected object with specified index. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a6e7410e90f67aece744325ccd65fcb37">&#9670;&nbsp;</a></span>operator[]() <span class="overload">[2/2]</span></h2>

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<p>operator [] return non-const reference to detected object with specified index. </p>
<dl class="params"><dt>Parameters</dt><dd>
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    <tr><td class="paramname">i</td><td>Index of object. </td></tr>
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</dl>
<dl class="section return"><dt>Returns</dt><dd>non-const reference to detected object with specified index. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#acee0dd0e63e62f73482101f7e62c0f65">&#9670;&nbsp;</a></span>size()</h2>

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          <td class="memname">size_t cv::detail::tracking::tbm::Track::size </td>
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          <td class="paramname"></td><td>)</td>
          <td> const</td>
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<p>size returns number of detected objects in a track. </p>
<dl class="section return"><dt>Returns</dt><dd>number of detected objects in a track. </dd></dl>

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<h2 class="groupheader">Member Data Documentation</h2>
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          <td class="memname"><a class="el" href="../../d3/d63/classcv_1_1Mat.html">cv::Mat</a> cv::detail::tracking::tbm::Track::descriptor_fast</td>
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<p>Fast descriptor. </p>

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<p>Strong descriptor (reid embedding). </p>

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          <td class="memname"><a class="el" href="../../da/d5a/structcv_1_1detail_1_1tracking_1_1tbm_1_1TrackedObject.html">TrackedObject</a> cv::detail::tracking::tbm::Track::first_object</td>
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<p>First object in track. </p>

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<p>Image of last detected object in track. </p>

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<p>Length of a track including number of objects that were removed from track in order to avoid memory usage growth. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a57501cdf4b1b36b73300853dfc639ae8">&#9670;&nbsp;</a></span>lost</h2>

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<p>How many frames ago track has been lost. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a7bb909be6720d6f54d984fe48e8cd3fa">&#9670;&nbsp;</a></span>objects</h2>

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          <td class="memname"><a class="el" href="../../dc/d5e/namespacecv_1_1detail_1_1tracking_1_1tbm.html#ab341a7342c7d95812f63c419e53a62b1">TrackedObjects</a> cv::detail::tracking::tbm::Track::objects</td>
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<p>Detected objects;. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a9b2e546787d55c3913efae4c07cb5ee6">&#9670;&nbsp;</a></span>predicted_rect</h2>

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          <td class="memname"><a class="el" href="../../dc/d84/group__core__basic.html#ga11d95de507098e90bad732b9345402e8">cv::Rect</a> cv::detail::tracking::tbm::Track::predicted_rect</td>
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<p>Rectangle that represents predicted position and size of bounding box if track has been lost. </p>

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<hr/>The documentation for this class was generated from the following file:<ul>
<li>opencv2/tracking/<a class="el" href="../../d1/db4/tracking__by__matching_8hpp.html">tracking_by_matching.hpp</a></li>
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